Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2023 19:17

General

  • Target

    docbit20230908.exe

  • Size

    400.0MB

  • MD5

    81e0872e2be9487534ddd879b05e6f62

  • SHA1

    f97c783cb79036a9f2ff27e70a182f1b6919da18

  • SHA256

    d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

  • SHA512

    40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

  • SSDEEP

    98304:XZ7MAV7nUqgfiWsNkFi589X/JiQGTfZ5MULBhT8i4wv7:XZ7tVDUq6iPkFiedRiQePLBpUw

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

homesafe1000.duckdns.org:1234

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • XenArmor Suite

    XenArmor is as suite of password recovery tools for various application.

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 26 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe
    "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        -a "C:\Users\Admin\AppData\Local\ed01f8a1\plg\061Ortg8.json"
        3⤵
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2880
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
          4⤵
          • Loads dropped DLL
          • Accesses Microsoft Outlook accounts
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1268
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
      2⤵
        PID:2108
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
        2⤵
          PID:2528
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2612
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            3⤵
            • Creates scheduled task(s)
            PID:2608
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {406920B8-8E77-48F2-AB1D-766F45468C89} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2752
        • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2556
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            3⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of AdjustPrivilegeToken
            PID:1984
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
            3⤵
              PID:1064
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              3⤵
                PID:1588
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  4⤵
                  • Creates scheduled task(s)
                  PID:2396
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                3⤵
                  PID:1568
              • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                2⤵
                • Executes dropped EXE
                PID:2316

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\unk.xml

              Filesize

              98B

              MD5

              67efe59fbf8aaf3e8de7d67dab21c2a7

              SHA1

              0869d3ea3b16639ed4a0803acea1c476e199b16c

              SHA256

              63ca5c5c3cf4be4765115926225c060d89ef54d6f6fc3ec284cb3ecb398b0cb1

              SHA512

              75f162ff2cc23dd7df018109264f157727fdecc869e3f493e4d0bed26b4429ab00fc9724a5ea420488ba1b4b102a07992357c0d3567c7acea6dd5333cd8cebbb

            • C:\Users\Admin\AppData\Local\ed01f8a1\plg\061Ortg8.json

              Filesize

              98B

              MD5

              67efe59fbf8aaf3e8de7d67dab21c2a7

              SHA1

              0869d3ea3b16639ed4a0803acea1c476e199b16c

              SHA256

              63ca5c5c3cf4be4765115926225c060d89ef54d6f6fc3ec284cb3ecb398b0cb1

              SHA512

              75f162ff2cc23dd7df018109264f157727fdecc869e3f493e4d0bed26b4429ab00fc9724a5ea420488ba1b4b102a07992357c0d3567c7acea6dd5333cd8cebbb

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              339.2MB

              MD5

              7410186615f9a93bc655651f01c58653

              SHA1

              da8112e62399d88ec9b4f7d48733da28ce21a523

              SHA256

              bba2cf15b3ebf73d6376c7092c477f214c766fff87c67928b05aca2c8375ed92

              SHA512

              42252821ede8cc467d14cbf3cfd26d640be4224c2d7a2d05bd5cb607e45bb2784b8d8fa75e93675045d4579d331a3b9f94ef002c7d75199bc00ee51912af0bb4

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              400.0MB

              MD5

              81e0872e2be9487534ddd879b05e6f62

              SHA1

              f97c783cb79036a9f2ff27e70a182f1b6919da18

              SHA256

              d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

              SHA512

              40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              400.0MB

              MD5

              81e0872e2be9487534ddd879b05e6f62

              SHA1

              f97c783cb79036a9f2ff27e70a182f1b6919da18

              SHA256

              d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

              SHA512

              40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\License.XenArmor

              Filesize

              104B

              MD5

              4f3bde9212e17ef18226866d6ac739b6

              SHA1

              732733bec8314beb81437e60876ffa75e72ae6cd

              SHA256

              212173a405c78d70f90e8ec0699a60ed2f4a9f3a8070de62eabd666c268fb174

              SHA512

              10b7cdae0b9a7b0f8e1bfc66a60675fa9b25c523864d5ae3da243f4e6e4c5194f3bd92af57ac956157442f66414bdd3393d0a1e5ba4ef0f192561e8524d4e744

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\License.XenArmor

              Filesize

              104B

              MD5

              bf5da170f7c9a8eae88d1cb1a191ff80

              SHA1

              dd1b991a1b03587a5d1edc94e919a2070e325610

              SHA256

              e5d5110feb21939d82d962981aeaaafc4643b40a9b87cbed800ace82135d57cd

              SHA512

              9e32247d8556fd6efffbf7b6b9c325652d8c4b223b0fa38020879171476a49ab1f64d8897b5d8d92b79c5484fd9d5899be26ca5f664ee1f9c2acb0857084121e

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Unknown.dll

              Filesize

              793KB

              MD5

              86114faba7e1ec4a667d2bcb2e23f024

              SHA1

              670df6e1ba1dc6bece046e8b2e573dd36748245e

              SHA256

              568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

              SHA512

              d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

            • \Windows\Microsoft.NET\Framework\v4.0.30319\Unknown.dll

              Filesize

              793KB

              MD5

              86114faba7e1ec4a667d2bcb2e23f024

              SHA1

              670df6e1ba1dc6bece046e8b2e573dd36748245e

              SHA256

              568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

              SHA512

              d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

            • memory/320-3-0x0000000074010000-0x00000000746FE000-memory.dmp

              Filesize

              6.9MB

            • memory/320-1-0x0000000074010000-0x00000000746FE000-memory.dmp

              Filesize

              6.9MB

            • memory/320-33-0x0000000074010000-0x00000000746FE000-memory.dmp

              Filesize

              6.9MB

            • memory/320-0-0x0000000000C00000-0x0000000001002000-memory.dmp

              Filesize

              4.0MB

            • memory/320-2-0x0000000004980000-0x00000000049C0000-memory.dmp

              Filesize

              256KB

            • memory/320-5-0x00000000053F0000-0x00000000057B8000-memory.dmp

              Filesize

              3.8MB

            • memory/320-4-0x0000000004980000-0x00000000049C0000-memory.dmp

              Filesize

              256KB

            • memory/1268-141-0x0000000000400000-0x00000000006FE000-memory.dmp

              Filesize

              3.0MB

            • memory/1268-162-0x0000000000400000-0x00000000006FE000-memory.dmp

              Filesize

              3.0MB

            • memory/1268-163-0x0000000010000000-0x0000000010227000-memory.dmp

              Filesize

              2.2MB

            • memory/1268-145-0x0000000010000000-0x0000000010227000-memory.dmp

              Filesize

              2.2MB

            • memory/2316-239-0x0000000004B90000-0x0000000004BD0000-memory.dmp

              Filesize

              256KB

            • memory/2316-244-0x0000000072720000-0x0000000072E0E000-memory.dmp

              Filesize

              6.9MB

            • memory/2316-245-0x0000000004B90000-0x0000000004BD0000-memory.dmp

              Filesize

              256KB

            • memory/2316-237-0x0000000072720000-0x0000000072E0E000-memory.dmp

              Filesize

              6.9MB

            • memory/2316-238-0x00000000001F0000-0x00000000005F2000-memory.dmp

              Filesize

              4.0MB

            • memory/2556-225-0x0000000072E10000-0x00000000734FE000-memory.dmp

              Filesize

              6.9MB

            • memory/2556-135-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB

            • memory/2556-98-0x0000000072E10000-0x00000000734FE000-memory.dmp

              Filesize

              6.9MB

            • memory/2556-80-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB

            • memory/2556-79-0x0000000001140000-0x0000000001542000-memory.dmp

              Filesize

              4.0MB

            • memory/2556-77-0x0000000072E10000-0x00000000734FE000-memory.dmp

              Filesize

              6.9MB

            • memory/2636-28-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-73-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-43-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-44-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-45-0x0000000000120000-0x000000000012A000-memory.dmp

              Filesize

              40KB

            • memory/2636-46-0x0000000000120000-0x000000000012A000-memory.dmp

              Filesize

              40KB

            • memory/2636-47-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-48-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-49-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-51-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-52-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-54-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-56-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-57-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-58-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-55-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-59-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-61-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-62-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-63-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-64-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-65-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-66-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-67-0x0000000000120000-0x000000000012A000-memory.dmp

              Filesize

              40KB

            • memory/2636-68-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-69-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-70-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-71-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-72-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-42-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-41-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-40-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-76-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-39-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-38-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-37-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-36-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-6-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-31-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-32-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-30-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-29-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-27-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-26-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-7-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-25-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-24-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-20-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-15-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-8-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2636-12-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-11-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-10-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2636-9-0x0000000000470000-0x000000000083E000-memory.dmp

              Filesize

              3.8MB

            • memory/2880-187-0x0000000000400000-0x00000000008DC000-memory.dmp

              Filesize

              4.9MB

            • memory/2880-150-0x0000000000400000-0x00000000008DC000-memory.dmp

              Filesize

              4.9MB

            • memory/2880-100-0x0000000000400000-0x00000000008DC000-memory.dmp

              Filesize

              4.9MB